Premium stainless steel construction — maximum corrosion resistance, chemical compatibility, and long-term mechanical integrity for consistent performance over an extended service life

Metal ratchet handle built for tough, durable, long-term use — withstands rigorous daily use while maintaining consistent performance over an extended service life

Secure threaded connection with the ratchet handle — eliminates interruptions during critical applications and ensures smooth, continuous material flow throughout the dispensing cycle

Quick and easy cartridge replacement — operators efficiently swap cartridges with minimal downtime, significantly enhancing productivity in time-sensitive field projects

Constructed in stainless steel — delivering superior corrosion resistance, chemical compatibility, and long-term mechanical integrity designed to maintain consistent performance over an extended service life in the most demanding professional environments.

Engineered specifically for 12.0 oz. Semco® Cartridges — delivering exceptional performance and reliability in demanding environments with the smooth, continuous material flow that critical aerospace, construction, and industrial sealant applications demand.

The threaded retainer creates a secure connection with the ratchet handle — eliminating interruptions during critical application processes and ensuring smooth, continuous material flow for consistent bead quality throughout the entire dispensing operation.

The standout quick-change cartridge system allows operators to efficiently swap cartridges with minimal downtime — significantly enhancing productivity in time-sensitive projects and reducing operational interruptions during high-volume field applications.

Custom-sized retainers in metal or plastic expand compatibility across the complete Semco® cartridge lineup — 1, 2.5, 6, 8, 12, 20, 32 oz., and 1/10 gallon disposable options — providing the adaptability required for projects of varying scales and material requirements.

The metal ratchet handle is built for tough, durable, long-term use — withstanding rigorous daily use in challenging field environments while maintaining consistent dispensing performance across an extended professional service life.

Metal retainers provide maximum durability and chemical resistance — the natural companion to the stainless steel 850 body for high-cycle, high-demand industrial and aerospace applications where long-term mechanical integrity and extended service life are non-negotiable.

Plastic retainers offer a lightweight, cost-effective alternative for standard sealant and adhesive applications — providing reliable performance across a wide range of materials while offering maximum operational flexibility based on specific application requirements and environmental conditions.

Consistent material extrusion — sized to match the 12.0 oz. cartridge for controlled, reliable material output with every ratchet stroke throughout the application cycle

Contamination & waste prevention — prevents premature curing, material waste, and contamination between application sessions to maintain material integrity

Proper material storage between applications — seals the cartridge end to prevent contamination and material waste, extending cartridge usable service life

Precision sealant application, structural adhesive bonding, and potting compound dispensing in aircraft MRO and manufacturing environments

Structural sealant and adhesive application for building envelope, glazing, curtain wall, and specialty construction joint sealing applications

Adhesive and sealant dispensing for manufacturing, assembly, and maintenance operations requiring consistent, high-quality material application in challenging field environments

Maximum corrosion resistance — consistent performance over an extended service life

Minimal downtime cartridge swaps — maximizes productivity in time-sensitive projects

1 oz. to 1/10 gallon — full Semco® cartridge ecosystem compatibility

Threaded retainer — smooth, continuous material flow throughout every application